Rotary explosive-engine.



J. W. DWSG?. ROTARY EXFLOSIVE ENGN. APPLICATION FILED JULY 27, 1911.

Eateted Jan. 19, 1915.

3 SHEETS-SHEET l.

J. W. DAWSON RGTRY EXPLOSIVE ENGINE. APPLw'ATIoN FILED. JULY 2?..1911.

Patented Jan. 19, 1915.

l @www James W Daf, www? J, W. DAWSON. ROTARY EXPLOSIVB ENGINE. APPLIGATMN HLBD 11111127, 1911,

LQ Patented Jan. 19, 1915.

3 SHEETS-SHEET 3.

. atten/mug .TAMIESA W. DAWSON, 0F YLESVILLE, CONNECTICUT.

RDTARY EXLOSIVE-ENGENE.

To all 'whom it may concern f Be it known. that l. JAMES YV. DAWSON, citizen of the United States, and resident of Yalesville, in the county of Wallingford and State of Connecticut, have invented certain new and useful Improvements in Rotary EXplosive-Engines, of which the followingl is a specification. y My invention relates to certain new and useful improvements in revolving. recipro eating explosive engines. The objects,A of the invention are to provide an etlicinhsiniple and practical form of air cooled engine that is adapted-to produce a 'great-amount of power compared with its weight; to design tlie motor so as to linclude three cylinders each vof which is to be' fired twice with every rotation of the cylinder carrying wheel; and'also to have `three auxiliary cylinders through which the feed charge is introduced to the explosion cylinders under compression after the clo-` sure of the exhaust valve; to inclose and support the wheel iii a special form of rim Specification of Letters Patent.

.elimination-flied Tuiy 27, 191i.

. rangement of parts Patented Jan. 19, i.

imei.

'pistons by die thrust upon the rod, which by reason of its increased length works more nearly central to the cylinder., and thus limits the forward and backward Wear of the piston iii the cylinders.

With these and other objects in view the invention resides and consists in the con-1 struction and novel combination and a.r`A

hereinafter fully cle-- scribed, illustrated in the accompanying drawings, and pointed out in the claims heretoappended, it being understood that various changes in the form, proportion, size and minor details of construction withinthe scope of the claims may be resorted to without departing from the spirit or sacri` ficing any of the advantages of the inven tion. L

Similar characters of reference denote like or corresponding parts throughout the4 several figures of the accompanying draw`v ings forming a part of this speciicatioinand upon which,

Figure l, shows a side elevation o f my iinwhich in part forms the heads for the cyl proved motor complete. F ig. 2, shows, a.- inders 'and likewise includes cooling means central vertical Vlongitudii'ial section of tho- .wliereby overheating is prevented, and to motor shown inFigl; "Fig 3, is a. central employ a'special form of connecting linkinvertical cross section through the motorshown in the preceding ligure and taken on termediate the pistons*` and crank shafts line 3-3 of Fig. l. Fig. 4, shows a further whereby the said shafts may be locatedy as far as possiblevfiom the center andtoward cioss'section, partly broken away, and taken on linel-l of Fig'. l, and, Fig. 5,'shows a 'fthel periphery of the cylinder wheel to ine\crease theV crank leverage. The three cylinders are placed in triangular form within a revolving ,wheel that includes a rim which forms' heads for the cylinders, andl is provdedwith ribs and perforations to form air passages throughwhich a circulation of air ranged centralrof the motor and also serves as afuel chamber through which the vgas is fed tothe several cylinders at proper and metal casing 11 is vfittedloetvveen the said.

the -inclosing of the operatively. parts of.

detail cross sectional view through one of lie exhaust ports and taken on line 5-5 of t ig. l. l

reference marked upon the drawings 6Vrep- 9.0 Referring'in detail to the,charactersi of?,

resents the two lower side frame sections of the motorv which as will be seen are provided with two supports. 7 "upon ltheir opposite outer edges, to facilitate the installation of arejgzrovided with flanges and bolts,10;foi

theij'- attachment to -the lower :sectie motor. A short cylindrical. perforated sheet jv 'predetermined' intervals. The connectingmframe members and insideoftlie langesl 105 links are comparatively long and are bifur- 4cated and bowed to straddle and oseillate around the main shaft in a way that forms a `unique and compact structure, and in a to form an inc'losure fortlie-periphery of the' 'frames togethernnd against the tubular' fmmier which will not tend to cranlip the outer e asing.-The connected central part Ilo lwheel 1) keyed thereon, het

of the side frames (i a finished to produce a i gering; 11i in the hubs 15 of' the eentrai Tears 1o and lli are mounted. The main sin 18 is des' l to rotate lin the said hnhs and gears and serre.; to .support the revolving eylinder en the and inside of the traine.

Suitable flat metal rings 20 are htted lietween the flanges of the side trames and 'the l the central part of the'side frames, and are screwed into and made fast to the before mentioned gear 16, 'which is thus fixed in position, against turning. The shaft, wheel. and parte carried therein, thus rotate with respect to the eenter gears and frame. This gear f16 is hollow to forni a passage for the fuel and is provided with two holes ffl-l in its inner side, which register7 at proper times with ports in the side e? the wheeh and. thus vfeed the gas into the central Chain-- her 526 from whence it is :ted to the serv-i l under the position. ot oath eylii.` drawing; in a charge of fuel., This ease is inelosed on all sides and. in practice serres as a fuel mixing chamber by reason of the several connection links operating therein.

The Wheel 19 contains three cylinders EET which are alike in construction and are ranged at an equal distance apart and radially with respect to the exis of the wheel, the central portion of the Wheel intermediate oi' the inner ends oi" the eylinder torins combined crank ease and vtnel chamber. lhe heads of the eyhnders are formed in the riin of the wheel and carry suitable f rli: ignition plugs 29 whieh Contact with the oppositely `located plugs 30 situated at top and bottoni of peripheral casing 11. This construction is designed to canse the several cylinders to tire twice with each rotation of the wheel as the said eylinders pass the said outer plugs 30, Y

The .tace of' the riin of the wheel 19 is proyided with several series of peripherailfv arranged corrugations '31, the channels ofi which are perforated as shown by 3Q to per init of a free flow of hot air ont there through and a fresh supply of eold air in through the sides and airainst the cylinders ior the purpose et' i tA e sainen niieates parte. trein Liemers trai fuel chamber 2G to the several auxiliary or eoinpression Cylinders fll Vtor eiinreying the itnel lto the said cylinders oreparatory to passing it into `the niain ejrl' l to he lired. ',l`his'lfuel is olrrionsljv ilran'n in hy the `in-` nard nioven'ient ot the pi ion el?, and while the eoaetingl piston 34.- is in its outer posi` tion. By the time the lirst mentioned pi tons 43 have .reached their innermost position and began to revese the month 53 oi the port 33 has become closed by the inward movement of the piston 34;. This piston 3l. is provided with a cheek valve -lft whirh allows the 'lnel to be forced therethrough .into the cylinder oy the outward movement of the piston 43 preparatory to heilig iii-ed. The pistons 45S are ioreed outward to eonr press the` fuel, hy means ot nains 415') located upon the crank shaft and hearing against the end of said piston. These pistons are drawn hack inward ,by a springr 46 one end of which is connected to said. pistons and the other end to the crank hearing. i l

The exhaust ports 35 are loeatedon the opposite sides from the intake and are so placed withrespeet to the intali'e ports, as to insure the cylinders exhausting before the ,tirez-sh charge ot :tnel intwidneed. The eiehanst ports extend ont tin-i wh the sides of the wheel and at proper i' register with the two jrfiores .fli formed in. the inner side t. end thor roaim and ont oll the side ol the it anne.

lilaeh the ijiistons tl-fl. are enornieteil hy a bilnroated or honed elongated connecting; rod 3&3, one end oi' Whieh is eonneeted to the piston and the other end to the crank shaft 3U jonrnaled in the sides oli' the wheel and hating sinall gears 'l0 upon their outer end portions and which mesh with the before mentioned large central stationary gear. `The niain shaft 1S i a""es freely through the double honed lin.. .i ii it referred to and which operate in an elliptical nath with rev spent to the said shirt*w "llif4 extreme distance hetn o n 4the t nier oit tie i'rheel and the oranti iaft i'ninile nos ihle by the use o't these double bowed elongated connecting rods. i

The oil introduced through the pilie .1l-1 and enters the hollow gear through the'filel .pipe 23 and by wayrof the above named ports 'il and 25 is fed into the crank case where it nonies into direct contact with the pistons and rear end of cylinders at each revolution, and hy the centrifugal force is distributed to all internal partis. a

The operation, therefore, of my improve( engine after the lnely has been turned in, is as follows: The wheel 19 is given a slight starting; turn, causing the fuel to he fed in through the central hollow' gear to the oranti chamber, from whence it is drawn up intothe respective anriliary cylinders, at, iilieir intijilie ports i, uncovered. The

charges in the several auxiliary cylinders .plug of the 'first cylinder contacts with that df one of the plugs in theouter casing, to 'produce the spark and fire the'v charge. The

force of the explosion is transmitted to the.

crank shaft and small gear, the latter being driven around in mesh with the big fixed gear, transmitting a further rotarymotion to the wheel and main shaft, The successive cylinders are in like manner 'charged and fired twice with each rotation of the Wheel, it being apparent that with the three er'.- plosion cylinders, each of which lire twice, there are in consequence sie'` charges fired with each rotation of the Wheel, thus producing a very edective and rapidly operating motor.- y

Having thus described my invention what I claim and desire to secure by Letters Patent is l. A rotary explosion engine comprising a shaft, a rotary Wheel mounted thereon and having a series of radially disposed cylinders arranged therein, an inclosed fuel chamber central ofthe Wheeland communicating with the said cylinders, crank shafts and 'gears carried by the Wheel and connected to be operated by the cylinders, a central hollow fixed gear meshing with the before mentioned gears, and ports leading from the liollow'gear to the' fuel chamber for feeding fuelinto the revolving cylinder Wheel.-

2. A rotary explosion engine comprising a rotary wheel having a series of radially disposed and operative cylinders arranged therein, a fuel chamber within the wheel and communicating with the cylinders, a fixed hollow gear adjoining the wheel and having ports to receive the fuel and feed it into the fuel chamber, crank shafts and gears carried by the wheel and meshing with the lined hollow gear. 3'. A rotary explosion engine comprising a shaft, a rotary wheel mounted in the shaft and having a series of radially disposed operative cylinders arranged therein, a piston iii each cylinder, crank shafts journaled in' the wheel, bifurcated links straddling the shaft and connecting the cylinderpistons and crankshafts, gears upon the crank' shafts, .and a center fixed gear meshing with "the beforementioned crank shaft gears.

4. A rotary explosion engine comprising a frame including a cylindrical casing, a ro `6Q tary Wheel having a series of radially dis- Aposed cylinders and 'operative pistons arranged therein and Ahaving the heads of said cylinders formed in the rim-of the wheel, a

:crank shaft vfor leach cylinder and piston, sparking devices in the heads and in thecye, ses

lindrical easing to cause the cylinders to fire at proper intervals, and bifurcated links connecting the pistons of the cylinders and crank shafts.

5. A rotary explosion engine comprising a central shaft, a` rotary wheel mounted thereon having a series of radially disposed vcylinders arranged therein, a frame in which the nfheel is mounted, an inclosed crank case,

central of the wheel formingfuel and miX- ing chambers, means for directing a supply of fuel through the side of the wheel into said chamber, ports leading from the chainber to the cylinders, and exhaust ports eX- tending from the cylinders through the peripie y of the wheel.

ln a rotary explosion engine, the conibination of a frame, central gears fixed therein, a rotary main shaft mounted inthe gears, a wheel carried bythe shaft and having a series of radially arranged cylinders mounted therein, a piston iii-each cylinder, crank shafts gournaled iii the Wheel, gears upon said crank shafts meshing with the 8. ln a rotary engine, the combination of frame comprising two pairs of semi-circular side frame members secured together, and a cylindrical casing intermediate of said side members, a shaft andwlieelmouiited to rotate in the frame and having a series of radial operating cylinders, means to insure the rotation of the Wheel by the operation of the cylinders, and means for introducing fuel into thevcentral side ortion of the Wheel and through the saidrame.

9; A rotary explosion engine, comprising a rotary Wheel having a series of radially disposed explosion cylinders and-pistons arranged therein, a compression cylinder arranged between each two of the said explosive oylinders, a single port leadingto each compression cylinder and from the latter to the explosive chambers, a check valve in each of the pistons of the explosion -o ders to permit the fuel lto be forcedgther and suitable outlet ports from the sait" plosion cylinders.

lt?. A rotary explosion engine,coiiip a series of radially disposed expv ders and pistons arranged- 4 hmmm-1a@ (dosed crank case central of the whe :mnand fm'vmc with me op@ 'ation of the pis ing a fuel :md mixing cl1im1be' L swim-3 of 'f :he @explosion Qyim'lerrs. Crunk shafts orimmt'lvely 113011311156@ wu inthe bi 1l/eu :1in Evi-r {'epoztin tlm Cc'nmty of mixing chamber, bowed bfuycumfi, link@ zixfdc :md fjtntu 0E Cm'mucl'icut this 24th 5 connecting the crunk Shaftiwgh the jpatons my @if J'uy ik. D., 1911.

of .the explosulm ybmilemru' Qonpl'ssmll'l JAMES WK DAW/Mimi cyhnder arranged dlr'ectly opposl auch 1L- plosou cylndeis und having' than e ':pmcatng pi ns operntmy 901m@ ad A (fil 10 the Said bom gd link?, to shave bh@ ma 'im/m;

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*WORM-IY 

